1,966 zoekresultaten voor “telescopes and instrumentation” in de Publieke website
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Astronomy and Instrumentation (MSc)
Naarmate onze wetenschappelijke ambities om het heelal beter te begrijpen zijn gegroeid, zijn ook de technologische uitdagingen sterk toegenomen. In deze opleiding leer je de fysieke eigenschappen en prestaties van astronomische instrumenten volledig te begrijpen en bij te dragen aan de ontwikkeling…
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Don't Blink: Detecting transiting exoplanets with MASCARA
This thesis describes the Multi-site All-Sky CAmeRA (MASCARA), which consists of two small robotic telescope designed to detect exoplanets around the brightest stars in the sky.
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High-resolution integral-field spectroscopy of exoplanets
This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.
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Young suns and infant planets: Probing the origins of solar systems
Even though more than 4000 extra-solar planets are known today, only a small fraction of these has been captured in an image. To better understand the planet formation mechanisms in solar-like environments we started the Young Suns Exoplanet Survey (YSES).
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Anthony Brown
Wiskunde en Natuurwetenschappen
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De zoektocht door het heelal
Astronomen willen het heelal begrijpen, van de Oerknal tot nu, en hoe dit verder zal gaan. In Leiden concentreren ze zich daarbij op twee vragen: 'Hoe ontstaan sterren en planeten? en 'Hoe ontstonden in het jonge heelal sterrenstelsels en zwarte gaten?' Een nieuwe generatie telescopen – net klaar of…
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Suppressing a Sea of Starlight: Enabling technology for the direct imaging of exoplanets
Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik
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Ontwerp METIS-instrument voor de Extremely Large Telescope definitief
Het ontwerp voor het METIS-instrument voor de Extremely Large Telescope (ELT) is definitief. De Europese Zuidelijke Sterrenwacht (ESO) heeft groen licht gegeven voor de productie van alle onderdelen van het instrument. Het is het eerste ELT-instrument, ontworpen en te bouwen onder Nederlandse leiding,…
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Silicon pore optics for high-energy optical systems
This thesis examines silicon pore optics (SPO), a technology that exploits silicon wafers from the semiconductor industry to create extremely high quality X-ray optics, by studying its manufacturing process, applications, and prospects.
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Magnetic Resonance Force Microscopy and the Spin Bath
There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.
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Star-Forming Galaxies at the Cosmic Dawn
Promotor: Prof.dr. M. Franx, Co-Promotor: Rychard Bouwens
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.
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Ice and Gas in Protostellar Clouds and Planet-forming Disks
This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.
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Early Dutch Radio Astronomy (1940-1970)
Promotores: F.H. van Lunteren, F.P. Israel
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Exploring strange new worlds with high-dispersion spectroscopy
Until the 1990s, the only known planets were those in our Solar System. Three decades later, several thousand exoplanets have been discovered orbiting stars other than the Sun, and substantial efforts have been made to explore these strange new worlds through spectroscopic analyses of their atmosphe…
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Oratie: De mens in het heelal
Nieuwe krachtige telescopen, zoals de European Extremely Large Telescope, zullen de atmosferen van aardachtige planeten gaan ontrafelen met behulp van nieuwe waarneemmethoden zoals onder ontwikkeling in Leiden. Zuurstof kan dan mogelijk als eerste bewijs dienen voor buitenaards leven.
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High-contrast imaging polarimetry of exoplanets and circumstellar disks
Understanding the formation and evolution of planetary systems is one of the most fundamental challenges in astronomy. To directly image and study young exoplanets and the circumstellar disks they form from, dedicated high-contrast imaging instruments are built.
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Monitoring and detection of nanomaterials in biological media.
How do nanoparticles bioaccumulate and biodistribute in organisms?
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Exploring the interactions of M dwarf winds and cosmic rays
This thesis focus on the interaction between M dwarf stellar winds and Galactic cosmic rays and the possible effects on the habitability of exoplanets.
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Huib Jan van Langevelde nieuwe directeur Event Horizon Telescope
De Leidse astronoom Huib Jan van Langevelde is benoemd tot directeur van het Event Horizon Telescope (EHT)- consortium. De EHT is een project waarbinnen zo’n 350 wetenschappers uit 18 landen samenwerken. De EHT bundelt de grote ALMA-telescoop in Chili met andere (sub)millimetertelescopen en publiceerde…
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Pushing the characterization of exoplanet atmospheres down to temperate rocky planets in the era of JWST
One of the key discoveries in exoplanet research over the past decade is the abundance of small planets in our Milky Way. Despite their high numbers, our understanding of their atmospheres remains limited, and it is unknown if they possess atmospheres at all.
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Star formation and aging at cosmic noon: the spectral evolution of galaxies from z=2
Promotores: Prof.dr. M. Franx, Prof.dr. P.G. van Dokkum (Yale University)
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Dawn of the red and dead: stellar kinematics of massive quiescent galaxies out to z = 2
Promotores: Prof.dr. M. Franx, Prof.dr. M. Kriek (Univ. of California at Berkeley)
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Protostellar jets and planet-forming disks: Witnessing the formation of Solar System analogues with interferometry
The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.
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Untangling cosmic collisions: a study of particle acceleration and magnetic fields in merging galaxy clusters
On the largest scale, the Universe resembles a cosmic spiderweb. Most galaxies coexist in small groups within the threads of this web. At the nodes of the threads are enormous groups of galaxies forming the largest structures in the universe still held together by gravity: clusters of galaxies.
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Cosmic particle acceleration by shocks and turbulence in merging galaxy clusters
In this thesis, I study the formation of large-scale structure and the physics of particle acceleration at large scales (~Mpc).
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Wim van Anrooij
Faculteit der Geesteswetenschappen
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wavefront sensors for direct exoplanet imaging: Theory, simulations and on-sky demonstrations
One of the key limitations of the direct imaging of exoplanets at small angular separations are quasi-static speckles that originate from evolving non-common path aberrations (NCPA) to which the primary adaptive optics system is inherently blind. The main focus of this thesis is the development and…
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Musems, Collections and Society | Yearbook 2020
In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.
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Musems, Collections and Society | Yearbook 2021
In this Yearbook you will find some fascinating examples of what was done in 2021, not only by ourselves, but also by our international colleagues.
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Forces and symmetries in cells and tissues
The way organisms develop from the initial single-cellular state to a complex final assembly like the human body, and how the final body is maintained throughout life, is one of the greatest mysteries and it’s understanding one of the biggest scientific challenges.
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Bugs and birds and landscape complexity
What invertebrates are available to feed nestlings in an agricultural landscape of varied complexity?
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Biology and Science Communication and Society (MSc)
In deze opleiding ligt de focus op het informeren van het algemene publiek over belangrijke wetenschappelijke onderwerpen en hoe je deze communicatie wetenschappelijk onderbouwt.
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Physics and Science Communication and Society (MSc)
Deze opleiding bereidt je voor op een rol als verbindende schakel tussen wetenschap en de samenleving. Je verwerft de kennis en vaardigheden waarmee je andere wetenschappers en leken kunt informeren over belangrijke wetenschappelijke ontwikkelingen in jouw vakgebied.
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Mathematics and Science Communication and Society (MSc)
Deze opleiding bereidt je voor op een rol als verbindende schakel tussen wetenschap en de samenleving. Je verwerft de kennis en vaardigheden waarmee je andere wetenschappers en leken kunt informeren over belangrijke wetenschappelijke ontwikkelingen in jouw vakgebied.
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Astronomy and Science Communication and Society (MSc)
In deze opleiding ligt de focus op het informeren van het algemene publiek over belangrijke wetenschappelijke onderwerpen en hoe je deze communicatie wetenschappelijk onderbouwt.
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Terrorism and Political Violence
Begrijpen van het evoluerende landschap van extremisme in de 21e eeuw.
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High-contrast spectroscopy of exoplanet atmospheres
More than 5,000 exoplanets have been found over the past couple of decades. These exoplanets show a tremendous diversity, ranging from scorching hot Jupiters, common super-Earths, to widely separated super-Jupiters on the planet/brown dwarf boundary.
- Gender and Sexuality in Society and Culture
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Citizenship, Migration and Global Transformations
Europese burgers worden geconfronteerd met uitdagingen op het gebied van globalisering, migratie, technologische ontwikkelingen en klimaatverandering. Deze uitdagingen vergen het uiterste van onderlinge internationale en intergenerationele solidariteit, wat rechtstreeks betrekking heeft op de grondslagen…
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Evolution and development of flowers, fruits and inflorescences of Phalaenopsis and other orchid species
The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.
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Bernhard Brandl
Wiskunde en Natuurwetenschappen
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Analytical chemistry and biochemistry of glycosphingolipids: new developments and insights
Advanced mass spectrometry of glycosphingolipids takes the central stage in this thesis. Investigations focus on characterization of glycosphingolipid metabolism in health and disease with emphasis to the detection and accurate quantitation of known and so far unknown glycosphingolipids and closely…
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Pesticides and health – challenges and opportunities for exposure assessment
The aim is to develop methods to assess environmental and occupational exposure to (individual) pesticides, to be applied in epidemiological studies investigating pesticide exposure and human health. Furthermore, we aim to investigate the potential association between exposure to pesticides and Parkinson’s…
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Evolution and development of orchid flowers and fruits
To gain more insight into the evolutionary development of orchid flowers and fruits, the orchid species Erycina pusilla was studied. The evolutionary origin of the median petaloid sepal, the callus on the labellum, and the stelidia was studied.
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Assemblage and functioning of bacterial communities in soil and rhizosphere
Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae
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Compiling and Refining Environmental and Economic Accounts (CREAA)
CREEA is a FP7 project on compiling and refining environmental and economic accounts. The project runs from April 2011 to March 2014.
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Transfusion Medicine and Cellular and Tissue Therapies (MSc)
This joint Master with the Autonomous University of Barcelona will the equip you with the necessary competences to play a key role in the emerging field of transfusion medicine. The programme includes both transfusion of blood components and hematopoietic transplants, cellular and tissue therapy, and…
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Glucocerebrosidase and glycolipids: In and beyond the lysosome
The lysosomal β-glucosidase named glucocerebrosidase (GCase) is a retaining β-glucosidase that hydrolyzes the glycosphingolipid glucosylceramide (GlcCer) to ceramide and glucose at acid pH.
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Ecology and genomics of Actinobacteria and their specialised metabolism
Filamentous Actinobacteria, such as Streptomyces, produce a plethora of chemically diverse bioactive metabolites that have found applications across medicine, agriculture and biotechnology.